blob: 100da3ab89f92448ba3ea5d466455330dd990b36 [file] [log] [blame]
// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:typed_data';
import 'package:file_selector_platform_interface/file_selector_platform_interface.dart';
import 'package:flutter/material.dart';
/// Screen that allows the user to select a save location using `getSavePath`,
/// then writes text to a file at that location.
class SaveTextPage extends StatelessWidget {
/// Default Constructor
SaveTextPage({super.key});
final TextEditingController _nameController = TextEditingController();
final TextEditingController _contentController = TextEditingController();
Future<void> _saveFile() async {
final String fileName = _nameController.text;
final FileSaveLocation? result =
await FileSelectorPlatform.instance.getSaveLocation(
options: SaveDialogOptions(suggestedName: fileName),
);
// Operation was canceled by the user.
if (result == null) {
return;
}
final String text = _contentController.text;
final Uint8List fileData = Uint8List.fromList(text.codeUnits);
const String fileMimeType = 'text/plain';
final XFile textFile =
XFile.fromData(fileData, mimeType: fileMimeType, name: fileName);
await textFile.saveTo(result.path);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Save text into a file'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
SizedBox(
width: 300,
child: TextField(
minLines: 1,
maxLines: 12,
controller: _nameController,
decoration: const InputDecoration(
hintText: '(Optional) Suggest File Name',
),
),
),
SizedBox(
width: 300,
child: TextField(
minLines: 1,
maxLines: 12,
controller: _contentController,
decoration: const InputDecoration(
hintText: 'Enter File Contents',
),
),
),
const SizedBox(height: 10),
ElevatedButton(
style: ElevatedButton.styleFrom(
backgroundColor: Colors.blue,
foregroundColor: Colors.white,
),
onPressed: _saveFile,
child: const Text('Press to save a text file'),
),
],
),
),
);
}
}